BaseQuery::initClauses PHP Method

    private function initClauses()
    {
        foreach ($this->clauses as $clause => $value) {
            if ($value) {
                $this->statements[$clause] = array();
                $this->parameters[$clause] = array();
            } else {
                $this->statements[$clause] = null;
                $this->parameters[$clause] = null;
            }
        }
    }